Arguments

Values

Description

The backward chaining inference engine is started to look for any set of bindings which satisfy
goal-to-prove
. Using those bindings,
pattern-to-instantiate
is instantiated and returned.

Two values are returned. The second value indicates with
t
that a proof was found, or with
nil
that no proof exists. In the former case, the first value is the instantiated version of
pattern-to-instantiate
, in the latter case, the first value is
nil
.

Any subgoals that match the object base will only find objects from the current inferencing state.